Beat shortening and sugar together for 3 minutes. Add eggs, vanilla and E-Z Gel and whip until light and fluffy. Add bananas and buttermilk. Stir in dry ingredients until just blended. Like all quick breads these muffins will peak if over beaten, so mix just until the flour is incorporated. A few lumps won't hurt anything. Fold in chocolate chips. Fill greased and floured (or lined) muffin tins 2/3 full. Bake for 20-30 minutes until tests done. Let cool for 5 minutes then remove from pans. Cool complete. Eat immediate, or freeze. Particularly good with cream cheese frosting!