In a microwave safe glass container, add the whole hulled strawberries and top with sugar. Wrap very tightly with plastic wrap and microwave on high for three minutes. Remove, stir and recover with plastic wrap before returning to the microwave for three minutes. Repeat this process another three-five times, until the liquid is bright red and all of the sugar has fully dissolved. Strain out the strawberries and refrigerate the syrup until ready to use.