Combine flour and butter with pastry blender; add 1 tablespoon water and blend to make pastry. Divide into 3 parts, pat each third into 13x3" strip on ungreased baking sheets. (Use 2 baking sheets, placing 2 strips on 1 sheet with space between strips.) Set aside. Combine 1/2 cup butter and 1 cup water in saucepan; bring to boiling. Remove from heat; add flour and stir until smooth. Beat in eggs, one at a time, until mixture is smooth. Blend in extract and spread dough over unbaked pastry strips. Bake in a preheated 350 degree oven until top is crips and golden (50-55 minutes). Cool. (The top will settle and form a custard over pastry.) Spread with Almond-Butter Frosting. Sprinkle with nuts. Cool slightly. To Serve: Cut into diagonal strips; serve warm or cold.