Spiced Walnut Maple Sour Cream Bundt Cake

stock photo
The cake portion of the recipe is adapted from the Williams-Sonoma site. This is one of my all-time favorite cakes! The amount of batter used original recipe caused overflow. So I made note here to reserve about 1/2 cup batter and bake the leftover in a muffin tin. I like to serve my cake with an apple pie filling type of conserve spooned over the sliced pieces, and have included a recipe.
CAKE RECIPE HELP