Preheat oven to 350F. In a small bowl, microwave the semi-sweet chocolate for 2 minutes to melt. In a food processor, combine tofu, sugar, cocoa powder, vanilla, vegetable oil, orange zest & juice, Amaretto and then pour in the melted chocolate. Use a rubber spatula to remove all chocolate from the bowl. Blend until smooth.

Grease 10 tart shells with removable bases. Sprinkle the crumbled graham crackers on the bottom of each tart shell. Pour in the batter and smooth on top with a rubber spatula.

Bake until firm on the outside, but still soft in the middle, 20 minutes. Don't overcook. Take out from the oven and remove the bottom when cool enough to handle. Refrigerate until chilled, then top with your favorite fruits and serve.