Step 1

Preheat a saute pan over medium heat. Cook the chopped onion for 7 to 10 minutes, stirring occasionally. Allow some color and caramelization to develop in the pan. You'll deglaze with water and other ingredients in a few minutes.

Step 2

Once the onion is golden, add the minced garlic and cook for about 30 seconds, stirring constantly so the garlic doesn't burn. Deglaze the pan with 1/4 cup of water.

Step 3

Add the remaining ingredients - tomato sauce, 1/2 cup water, apple cider vinegar, balsamic vinegar, maple syrup, molasses, smoked paprika, chili powder, cayenne, black pepper, salt, tamari, and liquid smoke, if using. Stir to combine. Bring to a simmer, and cook for 3 to 5 minutes or until slightly reduced.

Step 4

Remove from heat and let cool 15 minutes. Transfer to a blender, and blend until smooth. Pour into a jar, and allow to cool. Cover and refrigerate until ready to use.