Gluten-Free European Apple Cake
My Romanian family all make some version of this dense apple walnut cake every autumn. I think it's common to Germans, Austrians, and Hungarians too. I'm so pleased that I could almost replicate the taste and texture without wheat! Coconut flour can be substituted for almond flour. Makes a 9x13-inch pan. When cool, you can dust with confectioners' sugar if desired.