Honey Apple Cider Glazed Salmon

Ingredients (10)

• 1/2 cup unfiltered apple juice or apple cider (not hard cider)
• 1 1/2 tablespoons honey
• 4 salmon fillets (6 ounces each)
• 1 tablespoon extra virgin olive oil
• Salt
• 2 teaspoons lemon juice
• 1 tablespoon butter
• 8 ounces fresh baby spinach
• Freshly ground black pepper
• Lemon slices for garnish