Cheese Whole Wheat Short Pastry Tartlet Shells
["2 c. whole wheat pastry flour", "1/2 c. freshly grated Parmesan cheese", "1 tsp. dry mustard", "1 tsp. sweet paprika", "1/8 tsp. ground red pepper", "1/2 c. plus 2 Tbsp. cold unsalted butter, cut into 1/2-inch pieces (1 1/4 sticks)", "1 egg yolk mixed with ice water to equal 1/4 c.", "ice water (optional)", "additional whole wheat pastry flour"]
["Combine flour, cheese, dry mustard, paprika and ground red pepper in large mixing bowl.", "Add butter and blend with fingertips until mixture resembles coarse meal.", "Add egg yolk and water mixture and blend well, working dough as little as possible and adding more water 1 tablespoon at a time if dough is too dry. Turn dough out onto unfloured work surface and quickly form into ball.", "Cover with plastic wrap and refrigerate 30 minutes."]
["whole wheat pastry flour", "freshly grated Parmesan cheese", "dry mustard", "sweet paprika", "ground red pepper", "cold unsalted butter", "egg yolk", "water", "flour"]