INGREDIENTS
1 stick
unsalted butter—6 tablespoons melted, plus more for greasing
2 tbsp
all-purpose flour
1 1/2 cups
milk
Salt
Freshly ground pepper
1 tbsp
extra-virgin olive oil
1
small onion, finely diced
1/2
red bell pepper, cut into 1/4-inch dice
2
large egg yolks
2 tbsp
fresh lemon juice
Finely grated zest of 1 lemon
Hot sauce, such as Crystal or Tabasco
1 lb
lump crabmeat, picked over
Toasted baguette slices, for serving