Purple sweet potato mousse

By JosefaHyatt

Purple sweet potato mousse
Last time, I made a round purple potato mousse (Charlotte), but this time I made it again with a 9-inch cake mold and went to a friend's party. It was made in a hurry and there was no decoration on the perimeter, so he came out simply.

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Steps for Purple sweet potato mousse

  • Make  step 0
    1
    Method of cake body: Put egg whites in a clean water-free and oil-free container, add sugar and vinegar and beat until hard and frothy.
  • Make  step 1
    2
    Except for the low flour, put the egg yolk paste ingredients into a clean container and stir well.
  • Make  step 2
    3
    Sieve in the low flour and mix until there are no particles.
  • Make  step 3
    4
    Add 1/3 protein paste and egg yolk paste and mix well.
  • Make  step 4
    5
    Pour into the remaining 2/3 of the protein paste and stir well.
  • Make  step 5
    6
    Pour the cake paste into 2 baking plates lined with tinfoil or oilpaper, smooth it out, and shake it lightly a few times to create large bubbles.
  • Make  step 6
    7
    Put it into a preheated 350F/180C oven and bake for 20 minutes. Remove it, turn it upside down and tear off the tin foil. Cover the tin foil back on the cake to prevent drying.
  • Make  step 7
    8
    Fold a cake on foil or oil paper and spread with blueberry sauce.
  • Make  step 8
    9
    Roll the cake along the long sides, seal both sides, and refrigerate in the refrigerator for 15-20 minutes to shape.
  • Make  step 9
    10
    Slice the cake roll into thin slices.
  • Make  step 10
    11
    Lay a layer of plastic wrap on the cake mold and arrange the cake slices on the cake mold.
  • Make  step 11
    12
    Cut 2 8-inch slices into another plate of cake.
  • Make  step 12
    13
    How to make purple potato mousse: When baking the cake, you can make mashed potatoes. Peel and slice the purple sweet potatoes, steam them in the pan, and mash them.
  • Make  step 13
    14
    Sift the purples.
  • Make  step 14
    15
    Take 3 cups of purple mashed potatoes and 400ml milk, add them to the purple mashed potatoes and stir until a paste.
  • Make  step 15
    16
    Soak geldine powder in 350ML milk for 10-15 minutes, dissolve in water, and let cool.
  • Make  step 16
    17
    Pour the gelatine liquid into the purple potato paste and mix well.
  • Make  step 17
    18
    Whisk whipped cream with sugar until stiff.
  • Make  step 18
    19
    Stir in the purple sweet potato geldine paste.
  • Make  step 19
    20
    Pour about 1/2 of the mousse paste into the mold where the cake rolls are laid.
  • Make  step 20
    21
    Lay a layer of cake slices.
  • Make  step 21
    22
    Pour in the remaining mousse, cover with another piece of cake, and refrigerate in the refrigerator for more than 3 hours.
  • Make  step 22
    23
    Put the cake upside down on the cake holder and tear off the plastic wrap.