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Garlic & Herb Steak Crostini

Recipe by Cal Reynolds on InstagramAdded 6 November 2026.
  • 40 min
  • Serves 4
  • 20 ingredients

20 minutes to prep, 20 to cook. Garlic & Herb Steak Crostini are a crowd‑pleasing appetizer featuring tender steak, buttery herb spread, sweet caramelized onions, and a creamy horseradish sauce, all piled on crisp toasted baguette slices.

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Ingredients

4 servingsMetric

Garlic & Herb Compound Butter

Caramelized Onions

Creamy Horseradish Sauce

Amounts as Cal Reynolds gives them. Metric converts supported weights and liquids, and oven temperatures; spoon measures and counts stay as written.

Method

Caramelized Onions

  1. 1

    Heat a drizzle of olive oil in a skillet over medium‑low heat, add the sliced onion, season with SPG rub, drizzle with honey, and stir every few minutes until the onions are nicely caramelized.

  1. 2

    Garlic & Herb Compound Butter: Combine softened butter, minced garlic, chopped parsley, and 1 tbsp SPG rub until well mixed; set aside.

Creamy Horseradish Sauce

  1. 3

    In a bowl, whisk together sour cream, avocado mayo, apple cider vinegar, minced garlic, chopped chives, prepared horseradish, and season with salt and pepper to taste; set aside.

  1. 4

    Pat the steaks dry with paper towels, coat them with olive oil, and season generously on all sides with SPG rub.

  2. 5

    Drizzle the baguette slices with olive oil and set aside.

  3. 6

    Grill the steaks over medium‑high heat for about 4‑6 minutes per side, or until desired doneness (about 130°F for medium‑rare); let the steaks rest for 8‑10 minutes.

  4. 7

    Place the bread on the grill and toast until golden brown on both sides.

  5. 8

    Thinly slice the rested steaks, top each toasted baguette slice with a slice of steak, a spoonful of compound butter, a bit of caramelized onion, and a drizzle of horseradish sauce; garnish with chopped chives and serve.

Tips while you cook

Soften butter early
Soften the butter before mixing it with garlic, parsley, and SPG rub.
Rest steaks before slicing
Allow the grilled steaks to rest for 8‑10 minutes before slicing to retain juices.
Toast baguette after steak rest
Toast the baguette slices on the grill after the steaks have rested.
Stir onions frequently
Stir the onions every few minutes while caramelizing to prevent burning and achieve even color.

Notes from ReelsMeals, based on this recipe's ingredients, times and method. They are not the creator's instructions.

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Cal Reynolds made this.

The recipe comes from Cal Reynolds’s Instagram reel. ReelsMeals wrote it down from the caption and the voiceover. Check the original if something looks off, and for anything about allergens.

Are you Cal Reynolds and want this changed? Email [email protected].

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