The Best Cadbury chocolate oatmeal cookies | crunchy on the outside and soft on the inside

• 85 Grams Unsalted Butter Room temperature
• 1 Large Egg
• 1 Tsp Vanilla Extract
• 1/2 Tsp Salt
• 1/2 Tsp Baking Soda
• 1/2 Cup Brown Sugar
• 1/4 Cup Granulated Sugar
• 1 1/2 Cup old-fashioned rolled oats
• 1/2 Cup All purpose Flour
• 1/4 Cup Raisins
• 1/4 Cup Cadbury Milk chocolate

Peanut Butter filling

• 1 Cup Peanut Butter smooth or crunchy
• 1/4 Cup Icing Sugar
• 1 Tbsp Milk
• 30 Grams Melted Unsalted Butter
• 1/2 Tsp Sea Salt