Grease bottom and sides of 15x10x1-inch baking pan. In batter bowl with mixer at medium speed, beat flour, sugar, butter and salt until mixture resembles coarse crumbs. Press firmly and evenly into pan. Pre-bake in 350° oven 20 minutes or until golden brown. In medium saucepan combine brown sugar, corn syrup, margarine and cream. Bring to boil over medium heat; remove from heat. Stir in almonds and vanilla extract. Pour over hot crust; spread evenly. Bake 15 – 20 minutes or until set and golden. Cool completely on wire rack. Cut into 2-1/2 inch squares; cut each in half diagonally to create triangles.