Mini Chip Sour Cream Streusel Cake
["3/4 c. margarine, softened", "1 1/2 c. sugar", "3 eggs", "1 tsp. vanilla", "3 c. flour", "1 1/2 tsp. baking powder", "1 1/2 tsp. baking soda", "1/4 tsp. salt", "1 1/2 c. sour cream (12 oz.)", "1 1/2 c. mini chips", "1/4 c. packed light brown sugar", "1/4 c. chopped nuts", "1/2 tsp. cinnamon", "2 Tbsp. sugar", "2 Tbsp. water", "1/2 c. Hershey's mini chips"]
["In saucepan, heat sugar and water to boiling.", "Remove and add chips; stir until melted and desired consistency.", "Spread over cooled cake."]
["margarine", "sugar", "eggs", "vanilla", "flour", "baking powder", "baking soda", "salt", "sour cream", "mini chips", "brown sugar", "nuts", "cinnamon", "sugar", "water", "chips"]