Watermelon Margarita

2 cups watermelon puree
3 Tbsp granulated sugar
1 Tbsp fresh orange juice or juice of one orange
1 Tbsp fresh lime juice or juice of one lime
8oz Sour Mix
2 cups watermelon slices or chunks for garnish

Make a watermelon simple syrup by combining the sugar and the watermelon puree in a small sauce pan; simmer over low heat until thick and syrupy.  Allow to cool.  Combine all ingredients in a large pitcher.  To prepare a drink, pour 6oz into a shaker filled with ice.  Pour into margarita glass with a sugar rim, garnish with watermelon chunks or slices.

Optional:  You can add 8oz of premium tequila and 7oz of Gran Marnier.