Refreshing Frozen Watermelon Margaritas

6 c. cubed watermelon
1 orange
1 jalapeno, sliced and seeded
2/3 c. water
2/3 c. sugar
1 c. white or silver tequila
2/3 c. fresh lime juice
Pinch of salt
Lime and jalapeno slices

1. Freeze watermelon until solid.
2. Peel orange, do not include white pith.
3. Heat orange peel, jalapeno, water and sugar in small saucepan to a boil, then reduce heat to medium-low and simmer until sugar dissolves.
4. Let this simple syrup cool to room temp, then strain, discard solids and chill until ready to use.
5. Puree watermelon, tequila, lime juice, 2/3 c. simple syrup and salt in blender.
6. To salt serving glasses, place ½ c. coarse salt on a plate, run a cut lime around edge of each glass, then dip each glass into salt to coat.
7. Pour frozen beverage into glass, garnish with lime and jalapeno slices.