Crispy Garlic Mushroom Burger with No-Knead Buns - Flahavan's

Ingredients

• 1 1/4 cups Flahavan’s Rolled Oats
• 6 tbsp milled seeds
• 3 tbsp roasted seeds
• 1 tbsp easy mix yeast
• 55g caster sugar
• 1/2 cup warm water
• 4 3/4 cups bread flour, plus extra for dusting
• 1 ½ tsp salt
• 1 cup oat milk, lukewarm
• 1/5 cup rapeseed oil, plus extra for coating
• 6 Portobello Mushrooms
• 2 tbsp sriracha sauce
• 1 tbsp marigold bouillon powder
• 1 tsp garlic salt
• 4/5 cup gram flour
• olive oil spray