Preheat the oven to 300 degrees. Butter and flour a large baking
sheet. Mix the flour, sugar, and baking powder in a large bowl. In
a small bowl, whisk together the eggs, kirsch, Grand Marnier, and
almond extract. Add this mixture to the flour mixture. Stir in the
almonds and cherries. Spoon the dough onto the prepared baking
sheet and form it into a strip about 10 inches long, 5 inches wide,
and 1/2 inch thick. Bake in the preheated oven for 45 minutes, or
until set and firm to the touch. The dough shouldn't be hard.
Remove from the oven and slice diagonally with a serrated knife
into 1/2-inch slices. (Discard the thick end pieces.) Arrange the
slices on the baking sheet and return to the oven for 45 to 60
minutes, or until lightly brown. Let the biscotti cool for about 5
minutes on the baking sheet, then transfer them to wire racks to
cool completely. Store in an airtight container for up to 2 weeks.
Makes 20 cookies.
Source: "An Edible Christmas" Cookbook by Irena Chalmers.