These muffins don't contain any flour, they are fluffy and yummy and so easy to make. They don't contain a lot of sugar either.
150 gr. butter (melted, cooled down)
40 gr. sugar
3 egg yolks
1/2 vanilla bean
250 gr. sweet chestnut puree (unsweetened)
150 gr. ground haselnuts
5 egg whites
2 1/2 teaspoons cinnamon (optional, I'm a cinnamon lover)
Mix butter and sugar. Mix all the other ingredients with the butter-sugar mixture (except the egg whites!!).
Beat the egg whites. Mix them CAREFULLY with the other mass. The beaten egg whites will make your muffins light and fluffy, so be sure you don't destroy it's airy texture!
Give the mass in prepared muffin tin and bake for 20-30 minutes on 190 degrees Celsius