1 pkg. (2-layer size) yellow cake mix or pudding included cake mix
1 pkg. (4-serving size) Jello vanilla, butterscotch, butter pecan or lemon flavor pudding and pie filling
1 c. (1/2 pt.) sour cream or plain yogurt
1/3 c. vegetable oil
4 eggs
1/8 to 1/4 tsp. mace (optional)

Combine all ingredients in large bowl. With electric mixer at low speed, blend just to moisten, scraping sides of bowl often. Then beat at medium speed for 4 minutes. Pour batter into 2 greased and floured 9 x 5 inch loaf pans. bake in preheated 350 degree oven for 40 to 45 minutes, or until cake tester inserted in center of cakes comes out clean and cakes begin to pull away from sides of pans. Cool in pans on wire rack 15 minutes. Remove from pans and finish cooling on wire racks. Sprinkle with confectioner's sugar, if desired.