I used grated M&P in that way and I didn't like the way it came out at all.
Here's a recipe for Aromaweb's Exfoliating Sugar Scrub:
This customizable recipe will make approximately one 8 ounce jar or two 4 ounce jars of Exfoliating Sugar Scrub.
Ingredients:
8 ounces Turbinado Sugar or Demerara Sugar
1 ounce cold pressed Vegetable Oil. I personally like to use highly stable vegetable oils in this recipe such as Watermelon Seed Oil, Jojoba or Fractionated Coconut Oil
1 ounce Vegetable Glycerin
1 ounce Liquid Castille Soap
1/2 tsp. Vitamin E Oil (1400 IU is Ideal)
1/4 tsp. Essential Oil
Directions:
Add the sugar to a small-medium mixing bowl.
Add the oils, glycerin and castille soap to the sugar and mix well with a fork.
Add the essential oil and mix well.
I hope you have better luck.
Source:
www.aromaweb.com