1. Puree blackberries, raspberries, and lime juice in blender until smooth. 2. Strain through fine mesh strainer into large measuring cup. 3. Add sugar; stir until dissolved. 4. Refrigerate berry puree at least 1 hour and up to 1 day. 5. Mix tequila and Grand Marnier into berry puree. 6. Transfer half of mixture to blender; add half of frozen strawberries and 2 1/2 cups ice. 7. Blend until smooth. 8. Transfer to pitcher. 9. Repeat with remaining berry puree, frozen strawberries, and ice. 10. Pour into sugar-rimmed Margarita glasses and serve. 11. **Prep time does not include refrigerating the berry puree at least an hour and up to one day. ---------------------------------------------------------------------------
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Ingredients