Buber's Basque Page: Gateau Basque de Armentor

Ingredients

• 2 - 2-1/2 cups unbleached all-purpose flour
• 1/4 teaspoon salt
• 1/4 cup sugar
• 3 tablespoons finely grated lemon zest
• 3 egg yolks
• 1 egg
• 1 tablespoon dark rum
• 2 sticks unsalted butter (softened at room temperature)
• 1 tablespoon butter flavor extract
• 2 cups heavy cream, or half-and-half
• 1/2 cup unbleached all-purpose flour
• 1 tablespoon cornstarch
• 1/2 cup sugar
• 1/2 teaspoon salt
• 1 teaspoon vanilla extract
• 3 tablespoons dark rum
• 6 egg yolks
• 1/4 cup white chocolate chips
• 2 teaspoons butter flavor extract
• 1-2 tablespoons cocoa powder, sweetened, dark chocolate
• 12 ounces black cherry preserves