Dissolve sugar in milk, then preheat for 50 seconds in microwave.
Reserve 1/4 c, set aside.
Dissolve yeast in lukewarm water and let stand for 5 mins
Meanwhile, mix paste, oil, salt, flour, then pour in yeast mixture and knead.
Let dough rest for 5-10 mins then divide into portions at 120 g each.
Place buns on baking sheet, brush with reserved milk and press in cashew in the middle.
Let stand, covered for half H
Preheat oven 375 F, brush buns again with reserved milk, and bake for 20-22 mins.
Cool on rack