1. Preheat oven to 350°.
2. Combine first 4 ingredients in a large bowl; beat with a mixer at medium speed until blended. Add sugars; beat until blended.
3. Weigh or lightly spoon flour into dry measuring cups; level with a knife. Combine flour and next 5 ingredients (through allspice) in a small bowl; stir well with a whisk. Add flour mixture to banana mixture; beat just until blended.
4. Fold 1/3 cup minichips and nuts into batter; pour batter into a 9 x 5-inch loaf pan coated with cooking spray. Bake at 350° for 55 minutes or until a wooden pick inserted in center comes out clean. Remove from oven; cool 10 minutes in pan on a wire rack. Remove bread from pan; cool completely on wire rack. Combine remaining 1/3 cup minichips and milk in a microwave-safe bowl; microwave at HIGH for 30 seconds, stirring until smooth. Drizzle over bread.