I made a Bourbon Barrel Old Ale.
I caution you about how much Bourbon to use. I used 10 ounces for 5 gallons and it's noticeable.
Before using 375 ML of Bourbon, you should see how you will like that by adding Bourbon to a sample of your beer.
What I did was soak 2 ounces of medium toasted American Oak cubes in 10 ounces of Makers Mark Bourbon for 45 days, then poured that in, and bottled it.
There is a noticeable Oak taste, but the recipe calls for 6 months of aging so I will see how it is early next year.