¼cupzero calorie sweeteneror to taste (granulated will work here)
2teaspoonsvanilla
Cake:
1 ½cupsegg whitesfrom about 12 eggs, at room temperature
1cupzero calorie sweetenerblended in blender
2teaspooncream of tartar
2teaspoonvanilla extract
½cupcoconut flour
½cupwhey protein powder
½teaspoonsalt
Instructions
To prepare buttercream, mix all ingredients until well blended. Fill a piping bag with mixture and pipe 12 roses on to wax paper. Store in refrigerator.
To prepare cake: preheat the oven to 350 F. Cut parchment to fit the bottom of a 9-inch tube pan and fit into the bottom of the pan. (Do not spray the pan or use a non-stick pan--the cake batter must "cling" to the sides to rise properly)
Blend sweetener in blender to create a powdery texture.
Using a sifter or fine mesh strainer, sift together the flour, whey powder, 1/2 cup sweetener, and salt.
Whip the egg whites until foamy, then add the cream of tartar.
Continue to whip the egg whites until they form soft peaks. Whip the remaining 1/2 cup of sugar into the whites, 1/4 cup at a time, until they form stiff but not dry peaks. Mix in the vanilla.
Gently fold the flour mixture into the whites, about 1/3 cup at a time.
Spoon the batter into the tube pan, smooth the top, and bake for 45 minutes. To be extra sure it is done, you can check for an internal temperature of 205-209 F.
Remove from the oven and immediately invert the tube pan. If the pan doesn’t have “feet”, you can set it over the neck of a heavy bottle until cool.
To prepare whipped cream, whip cream to soft peaks, then add vanilla and sweetener and whip to stiff peaks. Taste and adjust sweetness. Frost the cake.
Remove buttercream roses from the refrigerator and divide them evenly atop the cake. Store any left overs in refrigerator.
Notes
You will need to use a sweetener that measures like sugar such as Swerve. Real sugar may be substituted for the sweetener, though calories will changeYou can substitute cake flour for the coconut flour and whey powder, though calories will change.Pictures show a cake made in a (half-sized) 7 inch pan.
I am not a health professional and nutrition data is calculated programatically. Accuracy may vary with product selection, calculator accuracy, etc. Consult a professional for the best information.