Zhè jiā diàn zuò de shì dìdìdàodào de Sìchuān cài.
This restaurant makes thoroughly authentic Sichuan food.
Tips
grammar
Reduplicated form (AABB) of 地道 (dìdao, 'authentic / genuine') for emphasis. The reduplication intensifies and is a common rhetorical move with two-character adjectives: 干干净净 (squeaky-clean), 漂漂亮亮 (dressed up nicely), 老老实实 (perfectly honest).
