Preheat oven to 350°. In a large bowl, cream butter and 1-1/3 cups sugar until light and fluffy. Beat in eggs and vanilla. In another bowl, whisk flour and baking powder; gradually beat into creamed mixture. Stir in chocolate chips.

Divide dough into four portions. On a lightly floured surface, roll each portion into a 15-in. rope. Place two ropes 4 in. apart on a parchment paper-lined 15x10x1-in. baking pan; flatten each with a fork to 1/4-in. thickness. Mix cinnamon and remaining sugar; sprinkle about 2 teaspoons mixture over each rectangle. Repeat with remaining ropes.

Bake 15-17 minutes or until edges are light brown. Cool on pans 2 minutes; immediately cut each rectangle into 1-in. slices. Remove to wire racks to cool.