Write SQL query to solve given problem: How many high risks violations did the Tiramisu Kitchen violate?. Keep the solution inside sql tag ```sql [SQL-Query] ```
SELECT COUNT(T1.business_id) FROM violations AS T1 INNER JOIN businesses AS T2 ON T1.business_id = T2.business_id WHERE T2.name = 'Tiramisu Kitchen' AND T1.risk_category = 'High Risk'