As I mentioned in the previous post I put the leftover rose froam from TGRWT #16 in the freezer and was surprised by the result. Inspired by this I thought I would extend this and substitute apple juice for water for TGRWT #17. As apple juice is quite sweet I started off with 20 g sugar, but once frozen it lacked sweetness and even was a litte icy, so I upped the amount to 40 g. The picture above may suggest that the foam could be served for dessert, but read the verdict before you make huge amounts of the foam.

Frozen rosy apple foam
2.1 g xanthan (0.50%)
3.6 g methyl cellulose (0.85%)
40 g sugar
6.5 g rose water
300 g apple juice
70 g lemon juice

Grind xanthan, methyl cellulose and sugar in mortar (easier dispersion of hydrocolloid in water). Mix liquids in a bowl and disperse sugar and hydrocolloids into solution with a hand held immersion blender. For better foam production change to tilted disk attachmend or use an electric whisk. Freeze.

Verdict: Aroma wise I was quite satisfied and even my wife liked it. The rose flavor was pronounced but not overwhelming and balanced nicely with the apple. I had to use quite a lot of lemon juice though to get it acidic enough for my taste. The texture was not as smooth as I had hoped for however. It was a little icy and even brittle when scooped and certainly need improvement if I’m to make this again. Another disappointment was the aftertaste – it was actually not good at all. I suspect that it’s one of the hydrocolloids. Anyone have similar experiences? As it is now I would not serve the frozen foam as a dessert because of the aftertaste. But it could work well as an element in a dish. And I was thinking if adding a little fat, for instance as cream, could help both the texture and remedy the aftertaste?

I only used my new Bamix for dispersion and whipping this time. First with the knife attachment for dispersion (top left) and then with the tilted disk for whipping (top right). Compared with the rose foam I made for TGRWT #16 using a conventional hand mixer the bubble size was more non-uniform when using the Bamix (bottom left). The foam scoops nicely when frozen, but texture leaves a little to desire (bottom right).

It’s time for a new round of “They go really well together”. For TGRWT #17 the challenge is to pair apple with rose, in particular Cox Orange or Elstar apples in combination with Damask (Rosa × damascena). The hosts this time are Malin and
Lisa, and Malin explains explains a litte about the chemistry behind the pairing both in English and Swedish. The deadline is May 8th so you get a little extra time for this round. By coincidence rose appears in TGRWT twice in a row, but I can assure you that the hosts of the March and April round did not know about each others choices when they were made. If you bought a bottle of rose water for last round I’m sure there’s a little left. You might even be lucky to get hold of fresh rose leaves now that summer is approaching. For inspiration on how rose combines with chicken, do check out the round up of TGRWT #16 over at Supernova Condensate.

For this month’s “They go really well together” event (TGRWT #16) hosted by Supernova Condensate I decided to leave the chicken untouched and focus on the rose component. I had long wanted to try Chad’s Lemon whip (which I’ve included in Texture) where lemon juice is thickened with xanthan and then whipped to a thick foam after addition of methyl cellulose. I started with water, a little sugar and about 10 g of rose water. Having added xanthan and methyl cellulose I tasted it and decided to double the amount of rose water, add some more sugar and add a little lemon juice for acidity. I can imagine that rose water comes in differents strengths so it’s advisable not to add all from the start.

Rose foam
15 g sugar
0.7 g xanthan (0.49%)
100 g water
20 g rose water
8 g lemon juice
1.2 g methyl cellulose (0.84%)
(I used Metil from Texturas)

Grind sugar and xanthan. Sprinkle into water, rose water and lemon juice with hand mixer on full speed. When the xanthan is dispersed add methyl cellulose a little by little with the mixer still on. Mix for another 5-10 minutes until bubbles are small and uniform and the foam is dense and stable. If desired the foam can be whipped with an iSi whipper charged with nitrous oxide. I served the rose foam with diced apples, stalk celery and chopped almonds as a side dish to roasted chicken. Mashed potatoes with basil leaves, topped with a good olive oil and ground pepper was nice with the chicken.

Verdict: The rose foam is thick and lucious. The rose aroma blends very well with apple aroma. Lemon, almonds and celery give a nice contrast. The overall combo was a pleasant surprise! My previous encounters with rose water have been somewhat overpowering (especially in food from the Middle East), but the rose foam was much milder as I had diluted it with plenty of water.

The foam is stable on the time scale of minutes to hours. When left overnight the bubbles coalescese, but the volume of the foam remains more or less the same. Foam from the previous day can easily be whipped up again with a hand mixer.

Newly whipped rose foam (left), 18 hours later the bubbles have coalescesed (right). I apologize for the somewhat weird colors.

In the last minutes of the TGRWT #6 I decided to make a simple apple cake and add some lavender. The cake was nice, but I could clearly have used much more lavender. This makes me curious about what experiences the rest of you have made combining apple and lavender.

Apple cake (with too little lavender)
100 g butter
170 g sugar
rind of 1/2 lemon
4 eggs (~210 g)
275 g flour
1 t baking powder
1 dL milk (or cream)
ca. 20 lavender leaves
3-4 apples, thinly sliced
3-4 t sugar

Mix butter and sugar. Add eggs and lemon rind. Mix flour and baking powder and add to the rest. Stir in milk and add lavender. I used leaves for the batter and ca. 15 to decorate the top. Pour batter into greased pan. Insert apple slices. Sprinkle with sugar. Bake at 175 °C for 45-55 min until golden. Cool. Serve with whipped cream.

TGRWT #6 is hosted by Inge over at Vanielje Kitchen (which BTW features a separate blog with recipes only). Deadline is October 1st and the foods to pair this time are apple and lavender. For other details – check out her post. In case you haven’t done so yet, check out Amrita’s excellent round-up of TGRWT #5 which was on chocolate and meat.

Unfortunately I don’t have any odour activity values for the apple/lavender combo, but a search at The Good Scents Company suggests there are several compounds which are found in or used with the two.

Heston Blumenthal has investigated how sound affects chewing, but I didn’t know that sound was so important for how we perceive the taste of apples. Studying particularily crisp apples, named Jazz apples, researchers found the following:

Professor Povey said, “When you munch a Jazz apple you create pulses of sound containing large amounts of ultrasound which our brains interpret differently from ordinary sounds such as speech. The pulses are so intense that if they were sustained as a tone, they would destroy our hearing.”

“It appears that ordinary hearing is short-circuited somehow and the greater the number of pulses of sound, the crisper we think the food is. Ultrasound is sound that is beyond the range of normal human hearing but it helps shape the noise into pulses that sound quite different.

“Our group of subjects were culturally diverse but all were able to identify crispness similarly. So perhaps there is a genetic disposition to the appreciation of crispness which has evolved as a sign of freshness in food.”