Chocolate Chunk Streusel Coffeecake

Chocolate Chunk Streusel Coffeecake 2/3 Cup flour 1/2 Cup firmly packed brown sugar 1/4 Cup butter or margarine -- (1/2 stick) 1/3 Cup chopped slivered almonds 1 Package yellow cake mix -- (2-layer size) cooled freshly brewed double-strength Coffee -- any variety 6 Squares Semi-Sweet Baking Chocolate -- chopped Mix flour and sugar in medium bowl. Cut in butter until mixture resembles coarse crumbs. Stir in almonds. Prepare cake mix as directed on package, substituting brewed coffee for water. Pour batter into greased 15x10x1-inch baking pan. Sprinkle with chocolate and streusel mixture. Bake at 350 degrees for 20 to 25 minutes or until toothpick inserted in center comes out clean. Cool. Cut into squares