Open-Faced Smoked Salmon Sourdough Sandwich

Ingredients

• 1 Tsp Salt
• 1/4 Cup Heavy cream
• 2 Cups Sour cream
• 1 1/2 Tsp Olive oil (divided)
• 2 - 3 Tbsp Prepared white horseradish sauce
• 1/2 Whole Lemon (juiced)
• 3 Sprigs Chives (rough chop)
• ! - 2 Tsp Ground black pepper
• 2 - 3 Ounces Smoked salmon
• 1/2 Whole Avocado (smashed)
• 1/2 Piece Sourdough bread
• 1 - 2 Whole Egg white