CRUST: Combine all ingredients in food processor or with pasry blender until crumbly. Press firmly in 13x9-inch pan. Bake at 350F for 15-20 minutes, or until light golden.
FILLING: Beat cream cheese and sugar on high speed of electric mixer until smooth. Add eggs, lemon juice, and vanilla, beating until smooth. Spread over crust. Bake at 350F for 35 minutes or until set.
TOPPING: Combine sour cream and sugar. Spread over cheesecake. Return to oven for 5 minutes. Cool 1 hour.
GLAZE: Combine sugar and cornstarch in saucepan. Stir in water, lemon juice, and egg yolk. Cook on medium heat, stirring constantly until mixture comes to a boil and thickens. Stir in butter.
Cool slightly. Spread over cheesecake. Store in refrigerator.