Mcdonald's Hot Mustard Sauce Clone

Found this recipe at: http://www.epicconstructions.com/mirror/mcd/ The recipes are in pdf & various fonts & formatting that don't translate well when printed. Some of the words I can't even read on paper at all (2 point type size), so I'm posting it here so we can use it again. It's the closest to McDonald's we've found to date. We had a package of the original sauce to compare side-by-side with. There is definitely no cayenne in the original (which is one of the clone's best assets) & the original tastes like it has a touch of BBQ sauce in it. I've seen a lot of recipes with Heinz 57 listed but I wasn't interested in trying another one of those tonight. This recipe utilized everything I already had on hand. We let it refrigerate for about 6 hours & the flavors mellowed quite a bit but I think the sauce will benefit from a longer refrigeration time as the mustard & vinegar flavors are overpowering right after mixing.

• Ready In: 5 mins
• Serves: 4
• Yields: 1/2 cup sauce

Ingredients

• 6  tablespoons prepared yellow mustard (Use store brand if possible as French's isn't quite right.)
• 2  tablespoons dark corn syrup (I used light corn syrup)
• 4  teaspoons dry mustard
• 1 1⁄2 teaspoons white vinegar
• 1  tablespoon mayonnaise
• 1⁄2 teaspoon soy sauce (I used low sodium)
• 1⁄2 teaspoon sugar
• 1⁄4 teaspoon  a dash cayenne pepper (I used nearly an 1/8 teaspoon)

Directions

1. In small microwave safe bowl, combine all ingredients with a fork. Mix well.
2. Microwave on high about 30-35 seconds then mix again.
3. Cover & refrigerate at least 6 hours to allow the flavors to meld.
4. This makes approximately 4 packets worth of hot mustard.