Preheat Oven: Preheat your oven to 375°F (191°C).
Mix Ingredients: In a large mixing bowl, use a handheld or stand mixer fitted with a paddle attachment to beat the cream cheese on medium-high speed until smooth and creamy, about 1 minute.
Add Flavour: Add the mayonnaise, sour cream, 1 cup cheddar cheese, ground mustard, lemon juice, and the saffron water (including the threads). Beat on medium-high speed until combined.
Fold in Crab: Using a spoon or silicone spatula, gently fold in the lump crab meat, being careful not to break it up too much.
Prepare to Bake: Transfer the mixture to a small/medium casserole dish or use individual ramekins. Sprinkle with the remaining 1/4 cup of cheddar cheese.
Bake: Bake for 25 minutes or until hot and bubbly around the edges.
Serve: Serve warm with crackers, sliced baguette, or fresh vegetables.
