I'll take one of these over a Bloody Mary any day of the year.
1 liter good vodka
2 cups grated horseradish
1/2 cup black peppercorns
Pour the vodka in a large jug, add the horseradish and peppercorns and shake it up. Let it sit for 10-12 hours, but give it a shake every couple of hours. When it's done, strain it through a coffee filter and pour it back in the bottle. Don't worry about the color... that just means it's absorbed all that horseradish and pepper.
48 ounce bottle of tomato juice
3 8 ounce bottles of clam juice
1 tablespoon Montreal Steak seasoning
1/4 cup lime juice
1 teaspoon prepared horseradish
Pour it all in a jug and shake it. Refrigerate for several hours until it's good and cold.
Fill a glass with ice. Give the mixer a good shake. Add the spicy vodka and mixer to the glass according to your tastes -- 1 part vodka to 3 parts mixer works well. Stir and garnish with a celery stick or wedge of lime.