Place a large bowl in freezer 10 minutes. Combine liqueur and espresso in a small microwave-safe bowl; microwave at HIGH 30 seconds. Stir until granules dissolve. Combine liqueur mixture, ice cream, and ground coffee in chilled bowl. Cover and freeze at least 3 hours or until firm.
Note: To soften ice cream in the microwave, cook on HIGH for 10 seconds or until soft.
