Okay a vinaigrette you have to heat up to use? Dumb I know but it tastes good.
Red Wine Vinegar
1 part vinegar and lemon juice to two parts water two three parts oil. Crush garlic cloves and add a few shakes of Mrs. Dash. Microwave 10-20 seconds. Shake. Num.
It will solidify in the fridge. Just nuke it again to use.