Melt the butter in a large saute pan over medium-high heat. Add the celery, onions and bell peppers and saute until the vegetables are softened, 10 to 12 minutes. Stir in the garlic and saute until fragrant, about 1 minute. Add the tomato paste and stir until combined.
Add the crawfish and saute for 5 minutes. Sprinkle in the flour and stir into the crawfish to make a thick mixture. Pour in the chicken stock and stir to deglaze the pan. Add the bay leaves. Season with Cajun Select Seasoning and hot sauce to taste. Bring to a simmer and cook, stirring, until the sauce has thickened, the flavors have developed and the crawfish are tender to the bite (though still firm), about 10 minutes.
Serve the crawfish over grits with a poached egg. Garnish with green onions.
Cajun Select Seasoning:
Blend together the granulated garlic, paprika, salt, cayenne, onion powder, black pepper, sugar, basil, celery seed and oregano in a bowl until combined. Store in an airtight jar for up to 6 months.
Easy Oven Grits:
Heat the oven to 350 degrees F.
Add the chicken stock, grits, 1 teaspoon salt and 1/2 teaspoon pepper to a 3-quart baking dish and stir to combine. Bake, stirring after 30 minutes, until the grits have thickened and absorbed the stock, about 1 hour.
Remove the grits from the oven and whisk in the heavy cream, butter and goat cheese to finish and loosen the grits. Taste and adjust seasoning as necessary.
Fill a large high-sided skillet halfway with water. Heat over medium heat to a very light simmer and stir in the vinegar and salt.
Crack an egg into a ramekin. Use a spoon to stir the water to create a whirlpool then drop the egg right into the center of the skillet. Cook until the whites have set and the yolks are still runny, 4 to 5 minutes, then remove using a slotted spoon, letting the water drain off. Repeat with remaining eggs.