Homemade Bbq Marinade
Heat the olive oil in a large saucepan set over a medium heat until hot. Add the onion, and a pinch of salt, sweating for 6-8 minutes until softened. Add the garlic and continue to cook for 2 minutes.
Deglaze with the Cognac, letting it evaporate almost entirely.
Stir in the tomato puree, spicy ketchup, brown sugar, vinegar, and a few dashes of Tabasco. Stir in 150 ml hot water.
Bring the sauce to a simmer, and then cook over a reduced heat for 10 minutes until thickened. Season to taste with salt and pepper.
Serve warm or cold.