Raspberries, blackberries, or even peaches will work in this cool, fruity dessert.
Place strawberries in an airtight container or plastic bag and leave in the freezer for 1 1/2 hours.
Remove strawberries from freezer. Place half of the frozen strawberries in the jar of a blender. Add ice, whole almonds, sugar, milk, and liqueur and as many more strawberries as will fit. Blend until there is enough room to add more strawberries. Add remaining strawberries and blend until smooth and spoonable. Divide among 4 serving dishes. Garnish with slivered almonds and serve immediately.