Blend pistachios in a food processor until finely ground, then mix with almond flour, oat flour, baking powder, baking soda & salt
Rub together sugar and lemon zest in a bowl, then add eggs and yogurt
Add lemon juice & almond extract, and whisk until smooth
Mix the wet and dry ingredients together, then divide between 3 6-inch cake pans and bake
Make the lemon frosting with butter, powdered sugar, lemon juice & zest
Frost your cooled cake layers with the lemon frosting and strawberry jam
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