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Watermelon MP Soap Tart Recipe

Try a different twist on a watermelon soap! We made a cute and easy tart soap which can be kept whole, cut in half or fourths to use as guest soaps.

Wholesale Supplies Plus is not responsible for the products you create from our supplies.
You alone are responsible for product and recipe testing to ensure compatibility and safety.

Project Level: Easy
Estimated Time: 1 Hour
Yield: 6 Soap Tarts


  •  35.0 oz. Premium Extra Clear MP Soap Base - 2 lb Tray
  •  9.0 oz. Premium Ultra White MP Soap Base - 2 lb Tray
  •  (2) .15 ml Scoop Black Knight Mica Powder
  •  (12) .15 ml Scoop Pink Watermelon Infusion Mica Powder
  •  (6) .15 ml Scoop Martini Olive Green Mica Powder
  •  (6) .15 ml Scoop Evergreen Green Mica Powder
  •  .72 oz. Watermelon Mania Fragrance Oil 277
  •  .36 oz. Vanilla Color Stabilizer - MP Soap
  •  1 Piece(s) Tear Drop Column Silicone Soap Mold 2030
  •  6 Piece(s) Pie Mini Silicone Mold


  •  Microwave
  •  2 Microwave-Safe Measuring Cup (8 oz.)
  •  Tall Cup (to support column mold)
  •  Cutting Mat
  •  Wire Whisk
  •  Mixing Spoons
  •  Spatula
  •  Ruler
  •  Spray Bottle with Rubbing Alcohol
  •  Straight Soap Cutter
  •  2 Piece(s) Beaker - Natural Polypropylene
  •  Scale - Digital Display (Professional)
  •  4 Piece(s) Scoop - 0.15 ml (Micro Size)

INCI Ingredient Label: Sorbitol, Propylene Glycol, Sodium Laureth Sulfate, Stearic Acid, Myristic Acid, Water, Sodium Hydroxide, Sodium Cocoyl Isethionate, Titanium Dioxide.

Recipe Directions

NOTE: If you are making these products for sale, good manufacturing practices recommend you wear a hairnet, gloves and a mask. We also recommend a clean apron and workspace.
  1. This recipe gives step-by-step instructions to make one SoapTart but lists enough ingredients to make 6 Tarts. 
  2. For Seeds: Melt 2 oz. cut up Extra Clear Soap Base in plastic beaker. Add (2) scoops of Black Knight Mica Powder and whisk.
  3. Snap Tear Drop Column Soap Mold together and set into a tall cup to help stand straight. Fill with black melted soap and let harden. Remove from mold, trim any excess from sides and set aside. Continue refilling mold until soap has been used. Remelt soap as necessary. 
  4. Cut  "seeds" into 3/4" pieces and set aside for later. This will yield enough for all 6 soap tarts. 
  5. Melt 4 oz. cut up Extra Clear Soap. Add 2 scoops of Pink Watermelon Infusion Mica Powder and whisk to incorporate. 
  6. Mix 3.5 ml Watermelon Mania Fragrance Oil with 2 ml Vanilla Color Stabilizer-MP Soap and let sit for 2 minutes. Add to pink melted soap and stir. 
  7. Pour a thin layer of soap into bottom of one Pie Mini Mold. Spritz 8 seeds with rubbing alcohol and arrange straight up in bottom of soap. Let set for few minutes.
  8. Spritz soap in mold and pour remaining pink soap around seeds. Let harden.    
  9. Melt 1.5 oz. Ultra White Soap. Add 1 scoop Martini Olive Green Mica Powder and whisk in.
  10. Spritz soap in mold with rubbing alcohol and pour soap into mold. Let harden.
  11. Melt 1.5 oz. Extra Clear Soap. Add 1 scoop Evergreen Green Mica Powder and whisk in.
  12. Spritz soap with alcohol and pour final layer of soap into mold. Spritz again and let set up.
  13. Remove from mold and wrap with Saran Wrap or packaging of choice. 
  14. If desired, cut in half and sell as slices or in fourths for guest soaps.
  15. Label accordingly.

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