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Best Veggie Marinade

Best veggie marinade with a tangy balsamic-lemon base that emulsifies into a glossy coating for grilled vegetables. Marinate zucchini, bell peppers, mushrooms, and onions, then grill until tender with charred edges for BBQ vegetables.
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Prep Time 5 minutes
marinating 30 minutes
Total Time 35 minutes
Servings: 1 cup
Course: Side Dish
Cuisine: American
Calories: 865
Ingredients Method Notes

Ingredients
  

Olive oil marinade base
  • 0.5 cup olive oil For a smooth, emulsified marinade.
  • 0.25 cup balsamic vinegar Adds tang and a deep color.
  • 2 tbsp lemon juice Brightens the flavor.
  • 3 garlic Use minced garlic for even distribution.
  • 1 tbsp Dijon mustard Helps emulsify and adds a savory edge.
  • 1 tbsp honey Balances acidity and supports caramelized notes on the grill.
  • 1 tsp dried oregano Classic herbal BBQ flavor.
  • 1 tsp dried basil Adds a gentle, sweet herb profile.
  • 0.5 tsp red pepper flakes Adds mild heat; adjust to taste.
  • salt Add to taste to season and improve flavor penetration.
  • pepper Add to taste for black pepper bite.

Method
 

Make the marinade
  1. Whisk olive oil, balsamic vinegar, lemon juice, minced garlic, Dijon mustard, and honey until emulsified and glossy.
  2. Whisk in dried oregano, dried basil, red pepper flakes, salt, and pepper until evenly combined and no dry pockets remain.
Marinate and grill
  1. Pour the marinade over prepared vegetables in a large bowl or zip-top bag and toss to coat evenly.
  2. Marinate for 30 minutes or up to 2 hours in the refrigerator, keeping vegetables covered and glistening.
  3. Grill vegetables over medium-high heat until tender and charred.
  4. Brush with any remaining marinade during grilling for extra flavor, then grill briefly to let it caramelize on the surface.

Notes

Pro tip: Whisk until the mixture looks slightly thickened and uniformly emulsified—this helps it cling to vegetables and improves browning on the grill. Keep any leftover marinade in a sealed container in the fridge up to 3 days; freeze yes (up to 2 months). For a lower-sugar option, swap honey for an equal amount of maple syrup or a sugar-free honey-style syrup, keeping the rest the same.