Peel and dice the mangoes (this always takes the most time for me)
Peel and dice half the onion and the garlic.
Add the diced onion, ginger, garlic, mangoes, maple syrup, red wine vinegar, (and if using the optional coriander, smoked paprika, cardamom, cinnamon, and chili powder) to a heavy bottom pan over low-medium heat.
Let simmer for about 7-10 minutes, stirring often. Then remove from heat and let cool slightly. As it cools, it should thicken up some.
Season with salt and pepper to taste and enjoy with your favorite curries or burgers!
