Nuked Negroni

1 twst Grapefruit peel
1 14 c Gin
1 14 c Sweet vermouth
1 14 c Campari
6   Blackberry
1 spg Rosemary
10 sli Grapefruit (as garnish)
Put all except grapefruit slices in a bowl and microwave for 3 minutes on high. Cool, strain, bottle. Serve over rocks and garnish.
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